Branch shredder with switchable shredding particle size

Abstract

The utility model discloses a branch crusher of switchable comminution particle size belongs to the agricultural garden machinery technical field technical field, including including cutter box, the cutter box both sides set up inlet, the discharge port respectively, the cutter box inside rotatory mounting comminution cutter tray, the upper portion installation upper cover, the detachable installation filter screen between comminution cutter tray and discharge port, and the filter screen includes left and right side plate, upper edge board, lower edge board and filter hole plate, and the upper edge board of filter screen installs handle, and the lower part of handle passes through the upper edge board of filter screen and extends downward and forms the upper fixed column, and the lower edge board right side fixed mounting lower fixed column, and the upper fixed column and lower fixed column are inserted into mounting hole no.

Description

Technical Field

[0001] This utility model relates to the field of agricultural and garden machinery technology, and in particular to a branch shredder with switchable shredding particle size. Background Technology

[0002] The wood chipper cuts wood, branches and leaves into the machine by rotating the shredding disc inside the blade box, and discharges the shredded particles from the discharge port. The shredded particles can be used for pressing boards, making animal feed, papermaking, composting, etc. Different materials and different uses require different particle sizes.

[0003] Existing wood chippers have a fixed filter screen installed at the discharge port, allowing particles smaller than the screen openings to be discharged. This means that only one type of pulverized particle size can be discharged, making it difficult to adapt to different materials and applications. Utility Model Content

[0004] The purpose of this invention is to provide a wood chipper with switchable particle size in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A wood chipper with switchable particle size includes a blade box, an inlet on the right side of the blade box, and a discharge port on the lower left side of the blade box. A rotatable pulverizing disc is mounted inside the blade box, and the rotating shaft of the pulverizing disc is mounted on the side wall of the blade box via bearings and bearing seats. A top cover is installed on the upper part of the blade box, with the upper right side of the top cover connected to the blade box via a hinge, and the left side of the top cover connected to the blade box via a screw fastening component. Inside the blade box, a filter screen with filter holes is detachably installed between the pulverizing disc and the discharge port.

[0007] Furthermore, the filter screen includes left and right side plates, an upper side plate, a lower side plate, and a filter hole plate. The left and right side plates, the upper side plate, and the lower side plate are respectively fixedly installed on the outer side of the filter hole plate, and the filter holes are opened on the filter hole plate. A handle is fixedly installed on the upper upper surface of the upper side plate. The lower part of the handle passes through the upper side plate of the filter screen and extends downward to form an upper fixing post. Correspondingly, there is a corresponding mounting hole 1 on the blade box wall plate. When installing the filter screen, the upper fixing post is inserted into the mounting hole 1, the lower end of the upper side plate abuts against the upper end of the right side wall plate of the blade box, and the inner side of the left upper wall plate of the top cover abuts against the upper end of the handle, thereby fixing the filter screen.

[0008] Furthermore, several lower fixing posts are fixedly installed on the right side of the lower side plate of the filter screen, and correspondingly, several mounting holes are opened inside the blade box. When installing the filter screen, the lower fixing posts are inserted into the mounting holes.

[0009] Furthermore, a sliding groove is opened on the upper left side of the blade box, and several guide posts are installed on the inner wall of the blade box. The guide posts are symmetrically arranged on the inner wall of the blade box, and the filter screen side plate slides over the sliding groove and guide posts.

[0010] Furthermore, the filter holes are diamond-shaped.

[0011] Furthermore, the width of the upper side plate of the filter screen is greater than the width of the side plate of the filter screen, and the left and right side plates and filter hole plate of the filter screen are arc-shaped, with an arc of (π / 6-π / 2) rad.

[0012] Furthermore, the ends of the left and right side plates, upper side plates, and lower side plates of the filter screen that are away from the filter perforation plate are covered with an elastic layer to reduce the impact noise between the filter screen and the inner wall of the blade box.

[0013] Furthermore, the left and right side plates of the filter screen have corresponding arc-shaped grooves, and a scraper can be detachably installed in the arc-shaped grooves. The scraper includes a rod and a cleaning plate. The end of the cleaning plate away from the rod is a pointed tip. Spring pins are set on both sides of the cleaning plate. When using the scraper, the spring pins are installed into the arc-shaped grooves, and the pointed tip of the scraper abuts against the filter screen, cleaning the filter screen through the pointed tip of the scraper.

[0014] The beneficial effects are:

[0015] 1. The detachable filter screen in the shredder provided by this utility model can change the particle size of the crushed material by replacing the filter screen with one that has different filter holes, thus adapting to different materials and different uses.

[0016] 2. A handle is installed on the upper side plate of the filter screen. The lower part of the handle passes through the upper side plate of the filter screen and extends downward to form an upper fixing post. A lower fixing post is fixedly installed on the right side of the lower side plate of the filter screen. The upper fixing post and the lower fixing post are inserted into mounting hole one and mounting hole two, respectively. The inner side of the upper wall plate on the left side of the top cover abuts against the upper end face of the handle to fix the filter screen. The filter screen can also be easily disassembled and assembled by pulling the handle after opening the top cover.

[0017] 3. A sliding groove is opened on the upper left side of the blade box, and several guide posts are installed on the inner wall of the blade box. The guide posts are symmetrically arranged on the inner wall of the blade box. The filter screen is installed or removed. The side plate of the filter screen slides through the sliding groove and guide posts, which can standardize the installation and removal path of the filter screen and prevent damage to the pulverizing disc.

[0018] 4. The scraper can be easily used to clean the filter screen of clogged and stuck crushed particles, making the use of the wood chipper more convenient. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of a shredder filter screen with switchable shredding particle size provided by this utility model after installation;

[0021] Figure 2 This is a schematic diagram of the overall structure of a shredder filter screen with switchable shredding particle size provided by this utility model before installation;

[0022] Figure 3 This is a schematic diagram of the overall structure of a shredder filter screen with switchable shredding particle size provided by this utility model;

[0023] Figure 4 This is a front view of a shredder filter screen with switchable shredding particle size provided by this utility model;

[0024] Figure 5 This is a right view of a wood chipper filter screen with switchable particle size provided by this utility model;

[0025] Figure 6 This is a partial enlarged view of the upper left side of the blade box of a wood chipper with switchable particle size provided by this utility model;

[0026] Figure 7 This is a schematic diagram of the overall structure of a scraper for a wood chipper with switchable particle size, provided by this utility model.

[0027] The following are explanations of the reference numerals in the attached drawings: 1. Knife box; 2. Feed inlet; 3. Top cover; 4. Discharge outlet; 5. Filter screen; 51. Handle; 52. Upper fixing post; 53. Upper side plate; 54. Lower fixing post; 55. Filter hole; 56. Arc groove; 6. Guide post; 7. Crushing blade disc; 8. Mounting hole one; 9. Mounting hole two; 10. Sliding groove; 11. Scraper; 111. Spring pin; 112. Tip. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] The present invention will be further described below with reference to the accompanying drawings:

[0031] like Figures 1 to 2As shown, a wood chipper with switchable particle size includes a blade box 1, a feed inlet 2 on the right side of the blade box 1, and a discharge outlet 4 on the lower left side of the blade box 1. A crushing disc 7 is rotatably installed inside the blade box 1. The rotating shaft of the crushing disc 7 is mounted on the side wall of the blade box 1 through bearings and bearing seats. The material to be crushed enters the blade box 1 through the feed inlet 2. The crushing disc 7 installed in the blade box 1 continuously rotates and cuts the material. The crushed material particles are discharged through the discharge outlet 4.

[0032] The upper cover 3 is installed on the upper part of the tool box 1. The upper right side of the upper cover 3 is connected to the tool box 1 by a hinge, and the left side of the upper cover 3 is connected to the tool box 1 by a screw fastening component.

[0033] like Figures 1 to 6 As shown, inside the blade box 1, a filter screen 5 is installed between the crushing blade 7 and the discharge port 4. The filter screen 5 has filter holes 55. After the material is crushed, the particles pass through the filter holes 55 on the filter screen 5 and are discharged through the discharge port 4. Particles that cannot pass through the filter holes 55 will remain inside the blade box 1 and be repeatedly crushed until they are crushed enough to pass through the filter holes 55. By replacing different filter screens 5, the discharge particle size of the shredder can be changed.

[0034] The filter screen 5 includes left and right side plates, an upper side plate 53, a lower side plate, and a filter hole plate. The left and right side plates, the upper side plate 53, and the lower side plate are fixedly installed on the outside of the filter hole plate. The filter holes 55 are opened on the filter hole plate. The filter holes 55 are rhomboid in shape. The rhomboid filter holes 55 are arranged in a regular manner. The area of ​​the filter holes 55 is larger than the area of ​​the filter hole plate. In actual tests, the filter screen 5 with rhomboid filter holes 55 has better passage of crushed material particles and is less prone to clogging than the filter screen 5 with circular filter holes 55.

[0035] The left and right side plates, upper side plate 53, and lower side plate of filter screen 5 are covered with an elastic layer at the ends away from the filter hole plate, which can reduce the impact noise between filter screen 5 and the inner wall of blade box 1 during crushing operation.

[0036] It is understandable that the crushing disc 7 rotates and cuts the material entering the blade box 1 inside the blade box 1. The crushing range of the crushing disc 7 is a cylindrical range centered on the rotation axis of the crushing disc 7. To adapt to the crushing range of the crushing disc 7, the left and right side plates and filter hole plates of the filter screen 5 are arc-shaped, with an arc range of (π / 6-π / 2) rad.

[0037] The width of the upper side plate 53 of the filter screen 5 is greater than the width of the side plate of the filter screen 5 at the connection position. The handle 51 is fixedly installed on the upper end face of the upper side plate 53. The lower part of the handle 51 passes through the upper side plate 53 of the filter screen 5 and extends downward to form an upper fixing post 52. Correspondingly, there is a corresponding mounting hole 8 on the wall panel of the knife box 1. When the filter screen 5 is installed, the upper fixing post 52 is inserted into the mounting hole 8, the lower end face of the upper side plate 53 abuts against the upper end face of the right side wall panel of the knife box 1, and the inner side of the upper wall panel on the left side of the top cover 3 abuts against the upper end face of the handle 51. In this way, the right side wall panel of the knife box 1 and the top cover 3 can clamp and fix the filter screen 5.

[0038] To more stably fix the filter screen 5, several lower fixing posts 54 are fixedly installed on the right end face of the lower side plate of the filter screen 5. Correspondingly, several mounting holes 9 are opened inside the blade box 1. When installing the filter screen 5, the lower fixing posts 54 are inserted into the mounting holes 9.

[0039] To facilitate the installation of the filter screen 5, a sliding groove 10 is provided on the upper left side of the blade box 1. Several guide posts 6 are fixedly installed on the inner wall of the blade box 1. The guide posts 6 are symmetrically arranged on the inner wall of the blade box 1. When installing the filter screen 5, the lower part of the filter screen 5 slides down from the opened upper cover 3 along a position away from the outer edge of the crushing blade disc 7. The side plate of the filter screen 5 slides over the sliding groove 10 and the guide posts 6 until the lower fixed post 54 is inserted into the second installation hole 9 and the upper fixed post 52 is inserted into the first installation hole 8. After the filter screen 5 is installed, the side plate of the filter screen 5 abuts against the guide posts 6 and the sliding groove 10.

[0040] Understandably, freshly felled timber contains abundant moisture, which includes sap, resin, sugar, and other sticky substances. During the shredding process, freshly felled timber easily adheres to the surface of the filter screen 5, gradually accumulating and clogging the filter holes 55. If the filter holes 55 are severely clogged, the machine needs to be stopped and the filter screen 5 removed for cleaning, which greatly affects the working efficiency of the wood chipper.

[0041] like Figure 3 , Figure 5 , Figure 7 As shown, in order to facilitate cleaning of the filter screen 5, arc-shaped grooves 56 are opened at corresponding positions on the left and right side plates of the filter screen 5, and corresponding scrapers 11 are provided. The scraper 11 includes a rod and a cleaning plate. The end of the cleaning plate away from the rod is a pointed tip 112. Spring pins 111 are provided on both sides of the cleaning plate. The spring pins 111 are cylindrical in shape.

[0042] When it is necessary to clean the filter screen 5, the spring pin 111 can be easily installed into the arc-shaped grooves 56 on both sides by compressing the spring pin 111. At this time, the tip 112 of the scraper 11 abuts against the filter screen 5. The operator holds the rod and the spring pin 111 slides in the arc-shaped groove 56, cleaning the filter screen 5 through the tip 112 of the scraper 11. After the filter screen 5 is cleaned, the spring pin 111 is removed from the arc-shaped groove 56, that is, the scraper 11 is removed from the shredder without affecting the use of the shredder.

[0043] In use, the material is fed into the shredder through the feed port 2 on the left side of the shredder. The material is cut and crushed in the cutter box 1. When it is necessary to change the crushing particle size, open the spiral fastening part between the left side of the upper cover 3 and the cutter box 1, rotate the upper cover 3 upward, and take out the installed filter screen 5 from the cutter box 1. Specifically, the operator lifts the handle 51 upward, so that the upper fixing column 52 and the lower fixing column 54 are pulled out from the mounting hole 1 8 and the mounting hole 2 9 respectively. The side plate of the filter screen 5 slides upward along the guide column 6 and the sliding groove 10, thus pulling the filter screen 5 out of the cutter box 1. Then install the filter screen 5 with the appropriate crushing particle size. Specifically, the operator holds the handle 51 of the filter screen 5 and slides the side plate of the filter screen 5 down along the sliding groove 10 and guide post 6 until the upper fixing post 52 and the lower fixing post 54 are inserted into the first installation hole 8 and the second installation hole 9, respectively. Then, the left side of the upper cover 3 rotates downward and abuts against the upper part of the knife box 1, and the lower wall plate of the upper cover 3 abuts against the upper end face of the upper side plate 53 of the filter screen 5. Tighten the spiral fastening component connecting the left side of the upper cover 3 to the knife box 1 to complete the switching of the crushing particle size. During the use of the shredder, if the filter hole 55 is severely clogged, the operator holds the rod of the scraper 11 and installs the spring pin 111 into the arc groove 56 of the filter screen, so that the tip 112 abuts against the filter hole plate of the filter screen 5. The filter screen 5 is cleaned by the tip 112 of the scraper 11. After the filter screen 5 is cleaned, the scraper 11 is removed from the filter screen 5.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A wood chipper with switchable particle size, comprising a blade box (1), a feed inlet (2) on the right side of the blade box (1), a discharge outlet (4) on the lower left side of the blade box (1), and a rotatable crushing disc (7) inside the blade box (1), the rotating shaft of the crushing disc (7) being mounted on the side wall of the blade box (1) via bearings and bearing seats; characterized in that: A cover (3) is installed on the upper part of the blade box (1). The upper right side of the cover (3) is connected to the blade box (1) by a hinge, and the left side of the cover (3) is connected to the blade box (1) by a screw fastening component. Inside the blade box (1), a filter screen (5) is detachably installed between the crushing blade disc (7) and the discharge port (4). The filter screen (5) has filter holes (55).

2. A wood chipper with switchable particle size according to claim 1, characterized in that: The filter screen (5) includes left and right side plates, upper side plate (53), lower side plate and filter hole plate. The left and right side plates, upper side plate (53) and lower side plate are fixedly installed on the outside of the filter hole plate. The filter hole (55) is opened on the filter hole plate. The upper end of the upper side plate (53) is fixedly installed with a handle (51). The lower part of the handle (51) passes through the upper side plate (53) of the filter screen (5) and extends downward to form an upper fixing post (52). Correspondingly, a corresponding mounting hole (8) is opened on the wall of the knife box 1. When the filter screen (5) is installed, the upper fixing post (52) is inserted into the mounting hole (8). The lower end of the upper side plate (53) abuts against the upper end of the right side wall of the knife box (1). The inner side of the upper wall of the left side of the cover (3) abuts against the upper end of the handle (51) to achieve the fixing of the filter screen (5).

3. A wood chipper with switchable particle size according to claim 2, characterized in that: Several lower fixing posts (54) are fixedly installed on the right side of the lower side plate of the filter screen (5). Correspondingly, several mounting holes (9) are opened inside the knife box (1). When the filter screen (5) is installed, the lower fixing posts (54) are inserted into the mounting holes (9).

4. A wood chipper with switchable particle size according to any one of claims 2 or 3, characterized in that: A sliding groove (10) is opened on the upper left side of the knife box (1). Several guide posts (6) are installed on the inner walls of both sides of the knife box (1). When the filter screen (5) is installed, the side plate of the filter screen (5) slides on the sliding groove (10) and the guide posts (6).

5. A wood chipper with switchable particle size according to claim 1, characterized in that: The filter hole (55) is rhomboid.

6. A wood chipper with switchable particle size according to claim 2, characterized in that: The width of the upper side plate (53) of the filter screen (5) is greater than the width of the side plate of the filter screen (5). The left and right side plates and the filter hole plate of the filter screen (5) are arc-shaped, and the curvature of the side plate and the filter hole plate is (π / 6-π / 2) rad.

7. A wood chipper with switchable particle size according to claim 2, characterized in that: The left and right side plates, upper side plate (53), and lower side plate of the filter screen (5) are covered with an elastic layer on the end face away from the filter hole plate to reduce the impact noise between the filter screen (5) and the inner wall of the knife box (1).

8. A wood chipper with switchable particle size according to claim 2, characterized in that: The filter screen (5) has arc-shaped grooves (56) at the corresponding positions on the left and right side plates. A scraper (11) is detachably installed in the arc-shaped groove (56). The scraper (11) includes a rod and a cleaning plate. The end of the cleaning plate away from the rod is a tip (112). Spring pins (111) are provided on both sides of the cleaning plate. When using the scraper (11), the spring pins (111) are installed in the arc-shaped groove (56). The tip (112) of the scraper (11) abuts against the filter screen (5) and the filter screen (5) is cleaned through the tip (112) of the scraper (11).

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